topic Re: IMX7D needs Pull down resistors on UART TX and RX? in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/IMX7D-needs-Pull-down-resistors-on-UART-TX-and-RX/m-p/994537#M147585 <HTML><HEAD></HEAD><BODY><P>Hi Jhonathan</P><SPAN> </SPAN><P></P><SPAN> </SPAN><P>in general they are not needed.</P><SPAN> </SPAN><P>If there is special need, internal pull down is enough.</P><SPAN> </SPAN><P></P><SPAN> </SPAN><P>Best regards<BR />igor<BR />-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Fri, 01 Nov 2019 23:41:59 GMT igorpadykov 2019-11-01T23:41:59Z IMX7D needs Pull down resistors on UART TX and RX? https://community.nxp.com/t5/i-MX-Processors/IMX7D-needs-Pull-down-resistors-on-UART-TX-and-RX/m-p/994536#M147584 <HTML><HEAD></HEAD><BODY><P>I am using RS232 on UART pins. I'd like to make sure the&nbsp;MCIMX7D5EVM10SD needs external pull down on these pins&nbsp; (e.g, UART1_TXD) or the internal pull down is enough?</P></BODY></HTML> Fri, 01 Nov 2019 13:39:49 GMT https://community.nxp.com/t5/i-MX-Processors/IMX7D-needs-Pull-down-resistors-on-UART-TX-and-RX/m-p/994536#M147584 jhonathan_silva 2019-11-01T13:39:49Z Re: IMX7D needs Pull down resistors on UART TX and RX? https://community.nxp.com/t5/i-MX-Processors/IMX7D-needs-Pull-down-resistors-on-UART-TX-and-RX/m-p/994537#M147585 <HTML><HEAD></HEAD><BODY><P>Hi Jhonathan</P><SPAN> </SPAN><P></P><SPAN> </SPAN><P>in general they are not needed.</P><SPAN> </SPAN><P>If there is special need, internal pull down is enough.</P><SPAN> </SPAN><P></P><SPAN> </SPAN><P>Best regards<BR />igor<BR />-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Fri, 01 Nov 2019 23:41:59 GMT https://community.nxp.com/t5/i-MX-Processors/IMX7D-needs-Pull-down-resistors-on-UART-TX-and-RX/m-p/994537#M147585 igorpadykov 2019-11-01T23:41:59Z